Magnetism and Electromagnetism If a loop in a basic dc generator suddenly begins rotating at a faster speed, the induced voltage remains unchanged increases reverses polarity decreases remains unchanged increases reverses polarity decreases ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism For a given wirewound core, an increase in current through the coil causes no change in flux density decreases the flux density reverses the flux lines increases the flux density causes no change in flux density decreases the flux density reverses the flux lines increases the flux density ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A permeable substance is one which is a strong magnet which is a bad conductor which is a good conductor through which the magnetic lines of force can pass very easily which is a strong magnet which is a bad conductor which is a good conductor through which the magnetic lines of force can pass very easily ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The force between two long parallel conductors is inversely proportional to Product of current in two conductors Current in one conductor Distance between the conductors Radius of conductor Product of current in two conductors Current in one conductor Distance between the conductors Radius of conductor ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What is the magneto-motive force in a 75-turn coil of wire when there are 4 A of current through it? 3 AT 300 AT 0.3 AT 30 AT 3 AT 300 AT 0.3 AT 30 AT ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What is the flux density when the flux is 5.5 Wb and the cross-sectional area is 6 × 10–3 m2? 91 T 917 T 91.7 T 9.7 T 91 T 917 T 91.7 T 9.7 T ANSWER DOWNLOAD EXAMIANS APP
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